A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 5920-01-381-0205
NSN 6240-01-597-4870
NSN 6620-00-280-2874
NSN 6320-00-731-6134
NSN 5925-01-462-2209
NSN 5930-01-364-4363
NSN 6150-00-978-7338
NSN 5996-01-068-4469
NSN 6650-00-283-0978
NSN 6135-00-299-6918
NSN 6320-00-731-6134
NSN 2925-01-443-4216